Analysis

  • max time kernel
    101s
  • max time network
    106s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    28/04/2022, 05:42

General

  • Target
    spin.xls
  • Size 36KB
  • Sample220428-gd1d7sbbb7
  • SHA256 59e8df76a0e5658a44dd2cc0e08d5cd1de8e961eadb19140f8b4cd18ab94c4a4
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Extracted

Language
  • xlm4.0

Source
URLs
  • xlm40.dropper

    https://skill.fashion/wp-data.php

Signatures

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\spin.xls
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:756
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\system32\rundll32.exe" C:\Users\Public\Documents\oFyxx.txt,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      PID:1860

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/756-54-0x000000002F391000-0x000000002F394000-memory.dmp

        memory/756-55-0x0000000071341000-0x0000000071343000-memory.dmp

        memory/756-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

        memory/756-57-0x000000007232D000-0x0000000072338000-memory.dmp

        memory/756-58-0x0000000075941000-0x0000000075943000-memory.dmp

        memory/756-61-0x000000005FFF0000-0x0000000060000000-memory.dmp